Shelly Dimmer 2 WiFi built-in switch
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Finally, an affordable smart dimmer from Shelly that can also be used without the blue neutral wire, which is often missing behind your wall switch. Now, the Shelly package is truly complete for making all your lighting smart.
Switch on/off and dim your lights wirelessly with your smartphone from anywhere in the world. The best part is that your wall switch still works as usual. Easily create smart scenes (scenarios) and set timers in the free app for your home automation. For example, automatically turn on your lights at sunset or dim your lighting for the night between 11:00 PM and 6:00 AM. Voice control with Siri (requires flashing or Homebridge), Google Assistant, or Amazon Alexa is also possible; "Hey Google, set the table lamp to 40%".
The Shelly Dimmer 2 is a very cost-effective and smart small WiFi in-wall dimmer for your Smart Home System, small enough to be installed behind your wall switch. We recommend choosing a double push button that you connect to SW1 (Input 1) and SW2 (Input 2) of the dimmer, allowing you to use SW1 to turn the dimmer "on" or "off" (clicking) and dim up (holding), and SW2 to turn the dimmer "on" or "off" (clicking) and dim down (holding). NOTE: the Shelly Dimmer 2 does not work with your existing (rotary) dimmer!
Shelly has its own free app, making it easy and affordable to set up a Smart Home System without the costs of a Gateway/Hub. The open-source nature ensures that you can integrate the Shelly Dimmer with almost any home automation system.
Also works with
* FIBARO Home Center 2, 3 or limited with Lite via a Virtual Device/Quick App
** Apple HomeKit requires flashing or a Homebridge
Install the Shelly Dimmer 2 according to the manual, connect via WiFi with the free Shelly App, and link the module. It couldn’t be simpler! The Shelly Dimmer 2 works with traditional dimmable incandescent bulbs, halogen lamps, and LED lighting. For 110-240VAC, 0W-220W, this dimmer requires no minimum load, but it does need a blue wire. If you don’t have a blue wire, you will need a Shelly Bypass EU or a minimum load of 10W.
The Shelly Dimmer 2 has an ESP8266 with a 4MB flash chip built-in. This allows you to flash your own or alternative firmware. Flashing requires a USB-to-UART 3.3V and a minimum 350mA adapter, such as our FTDI adapter. The best part is, you don’t even need to open the Shelly. Flashing is easy via the directly accessible pins on the outside.
NOTE: NEVER connect the Shelly to the power grid while flashing!
If you prefer not to use the free Shelly cloud service but still want to control your devices remotely, no problem. The Shelly Dimmer also supports basic MQTT (Message Queue Telemetry Transport) for reliable connections via a central broker. The involved devices only communicate with the broker and don’t need to know each other’s IP addresses or technical details. Safe and reliable, with real-time monitoring and easy integration. Want to know more? Read our Shelly WiFi Switch Blog.
FEATURES
Pros and Cons
Open source | |
Works stand-alone via WiFi 2.4 GHz | |
Built-in web server | |
Access Point and Client Mode | |
Supports HTTP and/or UDP | |
110-240VAC; | |
0-220W Halogen with blue neutral wire | |
0-200W LED with blue neutral wire | |
Min. 10W without blue neutral wire or otherwise with Bypass. | |
Protected against overheating and overloading | |
Free Android or iOS App | |
Free Shelly cloud | |
Works with MQTT | |
Works with Google Home or Alexa | |
Easy to install | |
Built-in, behind (wall) switch | |
Works with switch, pulse switch, hotel switch | |
Pulse switch for dimming | |
Scene activation via App | |
ESP8266 with 4MB flash/debug chip | |
OTA firmware updates | |
Max. load setting | |
2 Years Carry-in warranty | |
No blue neutral wire needed for connection | |
Transformer min. 50VA to max. 150VA. | |
Not suitable for Toroidal transformer | |
Does not work with rotary dimmer | |
HomeKit requires Homebridge | |
Flashing requires some skill |
DOWNLOADS
Don't forget to calibrate your Shelly Dimmer 2 immediately after installation!
You can do this via the Shelly App; Shelly Dimmer 2 - Settings - Calibration and choose Leading or Trailing edge depending on your lamp or driver specifications. If nothing is specified, choose trailing edge as it is the most standard. Also, lower the dim level before starting the calibration.
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Nog steeds ben ik fan van Shelly. Ook de service van Home2Link is altijd uitstekend! Ik heb nu de WIFI Dimmer2 gekocht en ingebouwd. Het is geweldig te zien hoe goed dit werkt en eigenlijk hoe makkelijk het te installeren is. Deze dimmer heb ik samen met die Jung Multipulsdrukker gekocht en geïnstalleerd: https://www.home2link.nl/jung-multipulsdrukker-2v-10a-250v.html
Ik had wat moeite de dimmer goed ingesteld te krijgen. Na contact met Home2Link werken ze nu perfect. Je moet na installatie gelijk de dimmer kalibreren met de juiste fase aan/afsnijding (meestal afsnijding=trailing edge.) Daarna was het geknipper weg en werkt het nu al een paar dagen stabiel. Ik gebruik ook de Bypass.
Dimmer is makkelijk te installeren en lekker degelijk. Ook is het makkelijk te gebruiken met de Shelly software en kan je uitzetten dat het met het internet kan praten (in tegenstelling tot veel china-ware). Ook goed te integreren in smarthome platformen zoals Home Assistant zonder dat zelf flashen nodig is!
Groot nadeel: de dimmer is erg gevoelig voor kleine spanningsverschillen in het stroomnet, dus de lampen flikkeren flink als je ze niet heel fel hebt staan. Aan het verbruik zal dat niet liggen, want er zitten zes dimbare Philips peertjes aan 1 dimmer.